JPS6424585U - - Google Patents
Info
- Publication number
- JPS6424585U JPS6424585U JP11886587U JP11886587U JPS6424585U JP S6424585 U JPS6424585 U JP S6424585U JP 11886587 U JP11886587 U JP 11886587U JP 11886587 U JP11886587 U JP 11886587U JP S6424585 U JPS6424585 U JP S6424585U
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- disk substrate
- identification mark
- type
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims 2
- 239000011521 glass Substances 0.000 claims 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11886587U JPS6424585U (ko) | 1987-08-04 | 1987-08-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11886587U JPS6424585U (ko) | 1987-08-04 | 1987-08-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6424585U true JPS6424585U (ko) | 1989-02-09 |
Family
ID=31363587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11886587U Pending JPS6424585U (ko) | 1987-08-04 | 1987-08-04 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6424585U (ko) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS613382A (ja) * | 1984-06-16 | 1986-01-09 | Victor Co Of Japan Ltd | 情報記録媒体円盤の原盤 |
JPS61258384A (ja) * | 1985-05-10 | 1986-11-15 | Toshiba Corp | 光デイスク媒体 |
JPS6245786B2 (ko) * | 1981-02-26 | 1987-09-29 | Hitachi Ltd | |
JPS63121187A (ja) * | 1986-11-10 | 1988-05-25 | Hitachi Maxell Ltd | 光情報記録デイスク |
-
1987
- 1987-08-04 JP JP11886587U patent/JPS6424585U/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6245786B2 (ko) * | 1981-02-26 | 1987-09-29 | Hitachi Ltd | |
JPS613382A (ja) * | 1984-06-16 | 1986-01-09 | Victor Co Of Japan Ltd | 情報記録媒体円盤の原盤 |
JPS61258384A (ja) * | 1985-05-10 | 1986-11-15 | Toshiba Corp | 光デイスク媒体 |
JPS63121187A (ja) * | 1986-11-10 | 1988-05-25 | Hitachi Maxell Ltd | 光情報記録デイスク |
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